CN102297224A - Disc double multi-step buffer low-noise brake - Google Patents
Disc double multi-step buffer low-noise brake Download PDFInfo
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- CN102297224A CN102297224A CN2011102457060A CN201110245706A CN102297224A CN 102297224 A CN102297224 A CN 102297224A CN 2011102457060 A CN2011102457060 A CN 2011102457060A CN 201110245706 A CN201110245706 A CN 201110245706A CN 102297224 A CN102297224 A CN 102297224A
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- elastic gonosome
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Abstract
The invention discloses a disc double multi-step buffer low-noise brake comprising two single brakes in the same structure; each single brake comprises a stator shell body, an excitation coil, an armature and a brake disc component; the two single brakes are connected together through a connecting bolt; a silent plate which can move in an axial direction of the connecting bolt in a micro distance and can be contacted with a friction plate of the brake disc component is arranged on one end surface of the armature which is close to the brake disc component; a spring groove and an elastic groove are arranged on one end surface of the armature which is close to the silent plate; a compression spring is arranged in the spring groove; a friction side high-elasticity body is arranged in the elastic groove; and a stator side high-elasticity body and a low-elasticity body are arranged between one end surface of the armature which is close to a stator shell body and one end surface of the stator shell body which is close to the armature. The disc double multi-step buffer low-noise brake significantly reduces the operation noise of the brake through a multi-step buffer structure.
Description
Technical field
The present invention relates to the double break of a kind of disc type, relate in particular to a kind of double multistage buffering low noise break of disc type that relies on multistage buffer structure to reduce noise, belong to the production field of the double break of disc type.
Background technique
The double break of disc type is mainly used in the braking of bigger equipment of braking moment such as elevator, the mode that the monomer break of two same structures of employing is connected in parallel is together braked, so be called double braking, the structure of the structure of monomer whose break and general electromagnetic brake is similar, comprise stator case, field coil, armature, connecting bolt and brake disc assembly, wherein, the screw rod of connecting bolt passes the pilot hole of armature and is connected with stator case, lining also is installed on connecting bolt, and field coil is installed in the stator case.
The defective of existing double break of disc type and general electromagnetic brake is: (1) is released and is pushed to by torsion spring in the process of brake disc assembly at armature, because speed is very fast, impact force is bigger, so armature can produce bigger noise when contacting with the friction plate of brake disc assembly; (2) at armature during by adhesive, armature can rush at stator case fast, thereby produce very big collision noise, the technological scheme that addresses this problem is arranged in the patent that the applicant has declared, promptly the edge between armature and stator case increases a rubber round section joint ring, but its effect is not very desirable, so now this defective is proposed new technological scheme; (3) because the double break of disc type is the acting in conjunction of two monomer breaks, so its noise is bigger, be the twice of general electromagnetic brake, and the quiet of elevator have relatively high expectations, be very important link so reduce noise.
In existing patent about reduction electromagnetic brake noise, also do not find identical with technical solution of the present invention or similar patent, as the patent No. be ZL201020567394.6 patent disclosure a kind of simple in structure, the reliability height, Security is good, noise is low, the low noise electromagnetic brake of long service life, between break stator and armature, be provided with silencing apparatus, silencing apparatus comprises the adjusting screw rod that vertically is screwed on break stator or the armature, on the break stator at adjusting screw rod medial extremity place or armature end face, be provided with counterbore, in counterbore, be embedded with the elastic buffer member, be provided with flat gasket between elastic buffer member and adjusting screw rod, the outboard end of adjusting screw rod extends to outside break stator or the armature.This structure is installed with adjusting screw rod, and not only complex structure difficulty is installed, and adjusting screw rod itself also brings noise easily.
And for example the patent No. be ZL200720151717.1 patent disclosure a kind of motor low noise electromagnetic brake, between braking magnet and armature, be provided with one deck electromagnetic buffer iron plate, be equipped with rubber sealing boot between braking magnet and the End cover for motor, with the parts of electromagnetic buffer iron plate as the reduction noise, be to be difficult to reach very good effect get, because himself also can send bigger noise when collision.
Summary of the invention
Purpose of the present invention provides a kind of double multistage buffering low noise break of disc type that relies on multistage buffer structure to reduce noise with regard to being the big problem of noise in order to solve the braking of above-mentioned electromagnetic brake and to remove braking.
In order to achieve the above object, the present invention has adopted following technological scheme:
The present invention includes two monomer breaks that structure is identical, described monomer break comprises stator case, field coil, armature, brake disc assembly, described two monomer breaks link together by a connecting bolt, described armature can move the quiet plate that also can contact with the friction plate of described brake disc assembly by microspur near being equipped with on the end end face of described brake disc assembly on the axial direction of described connecting bolt, described armature is provided with spring groove and elastomer groove near an end end face of described quiet plate, in the described spring groove pressure spring is installed, the high-elastic gonosome of friction side is installed in the described elastomer groove; Described armature is equipped with high-elastic gonosome of stator side and hypoelasticity body near an end end face and the described stator case of described stator case near between the end end face of described armature.
In the using process, when the field coil dead electricity, armature is released and is pushed to brake disc assembly by torsion spring, in this process, before armature, quiet plate and friction plate all contacted, pressure spring and friction side high elasticity cognition at first were compressed, under the elastic reaction of pressure spring and the high-elastic gonosome of friction side, impact when contacting between armature, quiet plate and the friction plate can be so fierce, so the noise of its generation is also much smaller.In addition, pressure spring can be made highly different structures with the high-elastic gonosome of friction side, and the process of an elder generation, back buffering can be arranged when stressed, to reach good noise reduction effect.
When field coil gets when electric, armature is by adhesive, in this process, armature at first will push high-elastic gonosome of stator side and hypoelasticity body before the contact stator case, under the elastic reaction of high-elastic gonosome of stator side and hypoelasticity body, impact when contacting between armature and the stator case can be so fierce, so the noise of its generation is also much smaller.The high-elastic gonosome of stator side can be made highly different structures with the hypoelasticity body, the process of an elder generation, back ladder-type buffering can be arranged, to reach good noise reduction effect when stressed.
Particularly, be set with hollow bolt on the described connecting bolt, evenly be provided with several mounting holes on the described quiet plate, also be provided with construction bolt between described quiet plate and the described armature, be connected with described construction bolt by described mounting hole, the described hollow bolt corresponding between described quiet plate and the described armature with described position of mounting hole.One end of described construction bolt is positioned at a side of close friction plate on the quiet plate, and the other end then is positioned at the installation counterbore that is arranged at close stator case one side on the armature.Hollow bolt and construction bolt all do not have fastening, can go up the requirement that microspur moves at the axial direction (yet being the axial direction of hollow bolt and construction bolt) of connecting bolt to satisfy quiet plate.
Further, high-elastic gonosome of described friction side and described pressure spring are a plurality of and are uniformly distributed on the end face of described armature near an end of described quiet plate.The even stressed buffering of multiple spot can reach better noise reduction effect.
Further, high-elastic gonosome of described stator side and described hypoelasticity body are a plurality of, and are uniformly distributed between described armature and the described stator case; The same side of high-elastic gonosome of described stator side and described hypoelasticity body is during near assembly wall, and there is height difference in the end face of its other end at axial direction.The even stressed buffering of multiple spot can reach better noise reduction effect; The height difference structure of high-elastic gonosome of stator side and hypoelasticity body then makes the buffering between armature and the stator case form the ladder-type buffering, reaches better noise reduction effect in conjunction with the high-elastic gonosome of stator side in the impact process with the different of hypoelasticity body elasticity simultaneously.
Particularly, the mounting structure of high-elastic gonosome of described stator side and described hypoelasticity body can have multiple, one: high-elastic gonosome of described stator side and described hypoelasticity body are installed on respectively in several interior counterbores that are provided with on the described armature end face; Its two: high-elastic gonosome of described stator side and described hypoelasticity body are installed on respectively in several that are provided with on the described stator case end face in counterbores; Its three: high-elastic gonosome of described stator side and described hypoelasticity body be installed on respectively on the described armature end face and described stator case end face on be provided with several in counterbores; Its four: high-elastic gonosome of described stator side and described hypoelasticity body are adhered to respectively on the described armature end face; Its five: high-elastic gonosome of described stator side and described hypoelasticity body are adhered to respectively on the described stator case end face; Its six: high-elastic gonosome of described stator side and described hypoelasticity body be adhered to respectively on the described armature end face and described stator case end face on.Which kind of mounting structure no matter is as long as satisfied before armature contact stator case the requirement of the extruding high-elastic gonosome of stator side and hypoelasticity body earlier.
Beneficial effect of the present invention is:
1, the present invention is by the setting of quiet plate, pressure spring and the high-elastic gonosome of friction side, impact when making between armature, quiet plate and the friction plate contact can be so fierce, make its impact force be passed to brake disc assembly in the mode that cascade weakens, so, the noise in the time of can significantly reducing the present invention and brake.
2, by high-elastic gonosome of stator side and hypoelasticity body are set, the damp impacts when making between armature and the stator case contact makes its impact force be released in the mode that cascade weakens, so, the noise in the time of can significantly reducing brake off of the present invention.
3, realize the quiet transmission and the release of impact force by comprehensive change, reach the optimum efficiency of noise abatement the height of pressure spring, the high-elastic gonosome of friction side, the high-elastic gonosome of stator side and hypoelasticity body, material, shape, structure.
To sum up, in concrete application process, according to the present invention the size of Operating torque adjust targetedly pressure spring, the high-elastic gonosome of friction side, the high-elastic gonosome of stator side and hypoelasticity body height, shape, material constitute, performance parameter with and position distribution and quantity, almost can realize braking and remove the zero noise control in the braking process, for the double break of disc type and general electromagnetic brake are laid a good foundation in the quiet environmental applications that requires of various height.
Description of drawings
Fig. 1 is that structural representation cuts open in office of the present invention;
Fig. 2 is the enlarged view of " A " among Fig. 1;
Fig. 3 is the enlarged view of " B " among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described in detail:
As shown in Figure 1, the present invention includes two monomer breaks that structure is identical, dotted line in the middle of among Fig. 1 is the separatrix of two monomer breaks, in order to embody the structure of monomer break, the monomer break on dotted line both sides analyse and observe the position difference, so the sectional structure of two monomer breaks is also different, but the structure of two monomer break sectional views all is the part of the structure of any one monomer break.
As depicted in figs. 1 and 2, described monomer break comprises stator case 15, field coil 16, armature 8, brake disc assembly 4, described two monomer breaks link together by a connecting bolt 2, armature 8 can move the quiet plate 3 that also can contact with the friction plate 19 of brake disc assembly 4 by microspur near being equipped with on the end end face of brake disc assembly 4 on the axial direction of connecting bolt 2, armature 8 is provided with spring groove and elastomer groove (owing to be separately installed with pressure spring 10 and the high-elastic gonosome 9 of friction side in spring groove and the elastomer groove near an end end face of quiet plates 3, the inconvenience mark, so it is not shown), pressure spring 10 is installed in the described spring groove, the high-elastic gonosome 9 of friction side is installed in the described elastomer groove.As shown in figures 1 and 3, armature 8 is equipped with high-elastic gonosome 18 of stator side and hypoelasticity body 17 near an end end face and the stator case 15 of stator case 15 near between the end end face of armature 8, and hypoelasticity body 17 is a hollow body.
As shown in Figure 1, be set with hollow bolt 1 on the connecting bolt 2, evenly be provided with several mounting hole (not shown)s on the quiet plate 3, also be provided with construction bolt 11 between quiet plate 3 and the armature 8, be connected with construction bolt 11 by described mounting hole, the hollow bolt 1 corresponding between quiet plate 3 and the armature 8 with described position of mounting hole.One end of construction bolt 11 band nuts 12 is positioned at a side of close friction plate 19 on the quiet plate 3, and the other end then is positioned at the installation counterbore that is arranged at close stator case 15 1 sides on the armature 8.Hollow bolt 1 and construction bolt 11 all do not have fastening, can go up the requirement that microspur moves at the axial direction (yet being the axial direction of hollow bolt 1 and construction bolt 11) of connecting bolt 2 to satisfy quiet plate 3.Hollow bolt 1 is a hexagon socket head cap screw, and construction bolt 11 is a hex head bolt.Among Fig. 1 13 is reseting handle, is used for compulsory commutation braking when improper braking; 14 is lifting bolt, the lifting when being used to install and mobile; 5 is round section joint ring, and 6 is spline housing, and round section joint ring 5 is installed between brake disc assembly 4 and the spline housing 6.
As depicted in figs. 1 and 2, high-elastic gonosome 9 of friction side and pressure spring 10 are a plurality of and are uniformly distributed on the end face of armature 8 near an end of quiet plate 3; As shown in figures 1 and 3, high-elastic gonosome 18 of stator side and hypoelasticity body 17 are a plurality of, and are uniformly distributed between armature 8 and the stator case 15.The even stressed buffering of multiple spot can reach better noise reduction effect.Because of analysing and observe the problem of angle, the high-elastic gonosome 9 of friction side, pressure spring 10, the high-elastic gonosome 18 of stator side and hypoelasticity body 17 all can only be seen 1 or 2 in the drawings, in fact have a plurality of.
As shown in figures 1 and 3, the same side of high-elastic gonosome 18 of stator side and hypoelasticity body 17 is during near assembly wall, and there is height difference in the axial direction in the end face of its other end.This structure embodies and not obvious in the drawings because this height difference can be provided with arbitrarily, who high who lowly also need not determine.The height difference structure of high-elastic gonosome 18 of stator side and hypoelasticity body 17 then makes the buffering between armature 8 and the stator case 15 form the ladder-type buffering, and is flexible different and reach better noise reduction effect in conjunction with the high-elastic gonosome 18 of stator side in the impact process and hypoelasticity body 17 simultaneously.
As shown in figures 1 and 3, the mounting structure of high-elastic gonosome 18 of stator side and hypoelasticity body 17 is: high-elastic gonosome 18 of stator side and hypoelasticity body 17 are installed on respectively in several interior counterbores that are provided with on the end face of armature 8.
In conjunction with Fig. 1 and Fig. 3, the mounting structure of high-elastic gonosome 18 of stator side and hypoelasticity body 17 can also have multiple, as: high-elastic gonosome 18 of stator side and hypoelasticity body 17 are installed on respectively in several interior counterbores that are provided with on the end face of stator case 15; Or: high-elastic gonosome 18 of stator side and hypoelasticity body 17 be installed on the end face of armature 8 respectively and be provided with on the end face of stator case 15 several in counterbores; Or: high-elastic gonosome 18 of stator side and hypoelasticity body 17 are adhered to respectively on the end face of armature 8; Or: high-elastic gonosome 18 of stator side and hypoelasticity body 17 are adhered to respectively on the end face of stator case 15; Or: high-elastic gonosome 18 of stator side and hypoelasticity body 17 are adhered on the end face of armature 8 respectively and on the end face of stator case 15.Which kind of mounting structure no matter is as long as satisfied before armature 8 contact stator cases 15 requirement of the extruding high-elastic gonosome 18 of stator side and hypoelasticity body 17 earlier.
In addition; the shape of the high-elastic gonosome 9 of friction side, the high-elastic gonosome 18 of stator side and hypoelasticity body 17, structure, highly, material forms, performance parameter can have a lot of variations; such as: its shape can square body, taper, cylindrical body, trigone, spheroid etc.; its structure can be for hollow or solid etc.; its material can be rubber or plastics etc.; no matter how to become, as long as its component function is constant, all in the rights protection scope of patent of the present invention.
In conjunction with Fig. 1-Fig. 3, in the using process, when field coil 16 when electric, the electromagnetic field that field coil 16 produces can overcome the spring force of torsion spring 7 with on armature 8 adhesive stator cases 15 end faces, this is that brake disc assembly 4 can freely rotate with the rotor that is connected with brake disc assembly 4 by spline housing 6, and the present invention is in the state of brake off.In this process, armature 8 at first will push high-elastic gonosome 18 of the stator side that is uniformly distributed in a plurality of unlike materials, different heights and hardness between armature 8 and the stator case 15 and hypoelasticity body 17 before contact stator case 15, under the ladder-type elastic resistance effect of high-elastic gonosome 18 of stator side and hypoelasticity body 17, impact when armature 8 contacts with stator case 15 can be so not fierce, so the noise of its generation is also much smaller.
When field coil 16 dead electricity, electromagnetic force can immediately disappear, armature 8 is released and is pushed to brake disc assembly 4 by torsion spring 7, in this process, at armature 8, quiet plate 3 with before friction plate 19 all contacts, the some pressure springs 10 and the high-elastic gonosome 9 of friction side that are distributed between armature 8 and the quiet plate 15 can at first be compressed, under the elastic reaction of pressure spring 10 and the high-elastic gonosome 9 of friction side, impact when contacting between armature 8, quiet plate 3 and the friction plate 19 can be so fierce, so the noise of its generation is also much smaller.When armature 8, quiet plate 3 and friction plate 19 press together closely, friction plate 19 will produce frictional force with quiet plate 3, therefore and produce retarding torque, retarding torque is delivered on the spline housing 6 through friction plate 19 and brake disc assembly 4, be delivered in the rotating shaft that is connected with spline housing 6 through spline housing 6 again, force the rotating shaft stall, thereby reach the effect of braking.
At last, need to prove that the monomer break among the present invention also can use separately, its working principle is all identical with working procedure, so with the break of monomer break as independent subject, equally invade the right of patent of the present invention.
Claims (10)
1. double multistage buffering low noise break of disc type, comprise two monomer breaks that structure is identical, described monomer break comprises stator case, field coil, armature, brake disc assembly, described two monomer breaks link together by a connecting bolt, it is characterized in that: described armature can move the quiet plate that also can contact with the friction plate of described brake disc assembly by microspur near being equipped with on the end end face of described brake disc assembly on the axial direction of described connecting bolt, described armature is provided with spring groove and elastomer groove near an end end face of described quiet plate, in the described spring groove pressure spring is installed, the high-elastic gonosome of friction side is installed in the described elastomer groove; Described armature is equipped with high-elastic gonosome of stator side and hypoelasticity body near an end end face and the described stator case of described stator case near between the end end face of described armature.
2. the double multistage buffering low noise break of disc type according to claim 1, it is characterized in that: be set with hollow bolt on the described connecting bolt, evenly be provided with several mounting holes on the described quiet plate, also be provided with construction bolt between described quiet plate and the described armature, be connected with described construction bolt by described mounting hole, the described hollow bolt corresponding between described quiet plate and the described armature with described position of mounting hole.
3. the double multistage buffering low noise break of disc type according to claim 1 is characterized in that: high-elastic gonosome of described friction side and described pressure spring are a plurality of and are uniformly distributed on the end face of described armature near an end of described quiet plate.
4. the double multistage buffering low noise break of disc type according to claim 1, it is characterized in that: high-elastic gonosome of described stator side and described hypoelasticity body are a plurality of, and are uniformly distributed between described armature and the described stator case; The same side of high-elastic gonosome of described stator side and described hypoelasticity body is during near assembly wall, and there is height difference in the end face of its other end at axial direction.
5. according to claim 1 or the double multistage buffering low noise break of 4 described disc types, it is characterized in that: high-elastic gonosome of described stator side and described hypoelasticity body are installed on respectively in several interior counterbores that are provided with on the described armature end face.
6. according to claim 1 or the double multistage buffering low noise break of 4 described disc types, it is characterized in that: high-elastic gonosome of described stator side and described hypoelasticity body are installed on respectively in several interior counterbores that are provided with on the described stator case end face.
7. according to claim 1 or the double multistage buffering low noise break of 4 described disc types, it is characterized in that: high-elastic gonosome of described stator side and described hypoelasticity body be installed on respectively on the described armature end face and described stator case end face on be provided with several in counterbores.
8. according to claim 1 or the double multistage buffering low noise break of 4 described disc types, it is characterized in that: high-elastic gonosome of described stator side and described hypoelasticity body are adhered to respectively on the described armature end face.
9. according to claim 1 or the double multistage buffering low noise break of 4 described disc types, it is characterized in that: high-elastic gonosome of described stator side and described hypoelasticity body are adhered to respectively on the described stator case end face.
10. according to claim 1 or the double multistage buffering low noise break of 4 described disc types, it is characterized in that: high-elastic gonosome of described stator side and described hypoelasticity body be adhered to respectively on the described armature end face and described stator case end face on.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110245706 CN102297224B (en) | 2011-08-25 | 2011-08-25 | Disc double multi-step buffer low-noise brake |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110245706 CN102297224B (en) | 2011-08-25 | 2011-08-25 | Disc double multi-step buffer low-noise brake |
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| CN102297224A true CN102297224A (en) | 2011-12-28 |
| CN102297224B CN102297224B (en) | 2013-09-04 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655717A (en) * | 2016-11-16 | 2017-05-10 | 国网山东省电力公司栖霞市供电公司 | Low-noise power converter |
| CN108019498A (en) * | 2016-11-01 | 2018-05-11 | 现代自动车株式会社 | Electormagnetic braking sytem for speed changer |
| CN109477531A (en) * | 2016-07-07 | 2019-03-15 | 株式会社日立制作所 | Electro-magnetic braking device |
| CN110905942A (en) * | 2019-12-18 | 2020-03-24 | 中国科学院长春光学精密机械与物理研究所 | Symmetric dry friction electromagnetic power-off brake |
| CN114688190A (en) * | 2022-04-20 | 2022-07-01 | 银川威马电机有限责任公司 | Lightweight electromagnetic power-off brake with strong universality |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3535313B2 (en) * | 1996-06-04 | 2004-06-07 | 小倉クラッチ株式会社 | Non-excitation type electromagnetic brake |
| CN201136755Y (en) * | 2007-11-27 | 2008-10-22 | 浙江西子富沃德电机有限公司 | Shaft brake |
| CN101823674A (en) * | 2010-05-20 | 2010-09-08 | 成都瑞迪机械实业有限公司 | Safety brake of elevator tractor |
| CN202188052U (en) * | 2011-08-25 | 2012-04-11 | 成都瑞迪机械实业有限公司 | Disc double multi-level buffer low noise brake |
-
2011
- 2011-08-25 CN CN 201110245706 patent/CN102297224B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3535313B2 (en) * | 1996-06-04 | 2004-06-07 | 小倉クラッチ株式会社 | Non-excitation type electromagnetic brake |
| CN201136755Y (en) * | 2007-11-27 | 2008-10-22 | 浙江西子富沃德电机有限公司 | Shaft brake |
| CN101823674A (en) * | 2010-05-20 | 2010-09-08 | 成都瑞迪机械实业有限公司 | Safety brake of elevator tractor |
| CN202188052U (en) * | 2011-08-25 | 2012-04-11 | 成都瑞迪机械实业有限公司 | Disc double multi-level buffer low noise brake |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109477531A (en) * | 2016-07-07 | 2019-03-15 | 株式会社日立制作所 | Electro-magnetic braking device |
| CN109477531B (en) * | 2016-07-07 | 2020-03-03 | 株式会社日立制作所 | Electromagnetic brake device |
| CN108019498A (en) * | 2016-11-01 | 2018-05-11 | 现代自动车株式会社 | Electormagnetic braking sytem for speed changer |
| CN108019498B (en) * | 2016-11-01 | 2022-05-27 | 现代自动车株式会社 | Electromagnetic braking system for a transmission |
| CN106655717A (en) * | 2016-11-16 | 2017-05-10 | 国网山东省电力公司栖霞市供电公司 | Low-noise power converter |
| CN110905942A (en) * | 2019-12-18 | 2020-03-24 | 中国科学院长春光学精密机械与物理研究所 | Symmetric dry friction electromagnetic power-off brake |
| CN114688190A (en) * | 2022-04-20 | 2022-07-01 | 银川威马电机有限责任公司 | Lightweight electromagnetic power-off brake with strong universality |
| CN114688190B (en) * | 2022-04-20 | 2023-08-08 | 银川威马电机有限责任公司 | Lightweight electromagnetic power-off brake with strong universality |
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| CN102297224B (en) | 2013-09-04 |
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Effective date of registration: 20170906 Address after: Shuangliu District of Sichuan province 610000 Avenue Chengdu City West four No. 909 in Hong Kong Patentee after: Chengdu Ruidi Machinery Technology Co. Ltd. Address before: West Port Avenue 610000 Sichuan city in Chengdu Province, southwest of Shuangliu County Airport Development Zone No. 909 two Patentee before: Ruidi Machinery Ind Co., Ltd., Chengdu |
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Address after: Shuangliu District of Sichuan province 610225 Avenue Chengdu City West four No. 909 in Hong Kong Patentee after: Chengdu Ruidi Zhiqu Technology Co.,Ltd. Address before: Shuangliu District of Sichuan province 610000 Avenue Chengdu City West four No. 909 in Hong Kong Patentee before: CHENGDU REACH MACHINERY Co.,Ltd. |
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| CP03 | Change of name, title or address |